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Vika [28.1K]
3 years ago
9

What is the magnitude of the centripetal

Physics
2 answers:
zepelin [54]3 years ago
4 0

Answer:

7.5

Explanation:

xxMikexx [17]3 years ago
4 0

Answer:

Explanation:

6.25

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What are two main types of friction
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Answer:There are two main types of friction, static friction and kinetic friction. Static friction operates between two surfaces that aren't moving relative to each other, while kinetic friction acts between objects in motion.

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3 years ago
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Poorly treated municipal wastewater is discharged to a stream. The river flow rate upstream of the discharge point is Qu/s = 8.7
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Answer

given,

Q u  = 8.7 m³/s

Q d= 0.9 m³/s

BOD concentration = 50 mg/L

a) BOD concentration at the down stream

C_{down}=\dfrac{0.9\times 50}{8.7+0.9}

C_{down}=\dfrac{0.9\times 50}{9.6}

               = 4.69 mg/L

b) discharge = 9.6 m³/s

cross sectional area = 10 m²

velocity steam = \dfrac{8.7+0.9}{10}

                        = 0.96 m/s

time taken to move 50 km down stream =\dfrac{50 \times 1000}{0.96}

                                                                  = 52083.3 s

                                                                  = \dfrac{52083.3}{3600\times 24}

                                                                   = 0.6 days

now,

C_t=C_0e^{-kt}

C_t=4.6875\ e^{-0.2\times 0.6}

C_t = 4.16 mg/L

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4 years ago
The flow of free electrons in a conductor due to the potential difference in volts is known as __________.
ioda

current, the flow of electrons make the current

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it says in the description that is 2 1/2 times earth's gravity thingy. you gotta read the question

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